The simple answer is that PI is what falls out when you study circles. If I had a circle that is 1 foot in diameter, then the circumference (or perimeter) is PI feet. The numerical value of PI wasn't chosen at random, it was found. As for the area of a circle, the perimeter of any object has a relationship to its area. So, PI again becomes important.
The area of a circle, in terms of pie, with a diameter of 36 is: about 324pi
In order to find the diameter of a circle if you have the area is to rearrange the formula for the area of a circle to put diameter as the unknown, like so: PIE*d = Area of a Circle d = (Area of a Circle) / PIE Therefore if the area of your circle is 40cm, 40/PIE = 12.73cm and that's the diameter.
This circle's area would be 78.54 units squared.
The circumference of a circle with an area of 121 pie yards squared (380.13 yards2) is: 69.1 yards
Circumference of a circle = diameter*pi
4/3[pie]rcube
To work out the area of a circle, you have to learn something called 'PIE'or 'PI' in Greek. Pie = 3.14. Search 'What is pie?' on this to find out the next part...
The sign pie is used for finding the area in a circle.
Area: (pi)(r)2
Pie is a symbol that represents a number (3.14159...). Pie algebra is when the number Pie is used in algebra like the ccircumference of a circle. A circumference of a circle is worked out by Pie algebra: DxPie (diameter x Pie). Its a bit complicated to explain but...
Pie is 3.14 etc etc etc. Its used in all the formulas to calculate the sums of a circle. Including Diameters, Radiuses and arcs & etc.
A pie chart is used to compare facts with each other visually in the form of a circle whereas pi is used for example in finding the area of a circle.
The circle graph (or a pie chart) is used for showing percentages and/or decimals or to show a fraction
To compare data within 360 degrees of a circle
A Compass - Pie Chart
Yes. Angles are used to draw pie charts so that each portion has an equal amount of the circle by the total.
well the formula to find the area of a circle is Area=pie x radius squared so if i say calculate the area of a circle with the following measurements giving your answer in terms of pie. Radius=8cm Area=pie x radius squared Area=pie x 8 squared Area= 64 pie cm squared If you do this calculation on your calculator ( pie x 8 squared) you should get the same answer. I hope this helped. If you need anything else veryfying then please ask. :)